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Date: 2005-12-13 08:54:17Astrology Space Orbits Earth orbits Planetary science Halo orbit Mass Johannes Kepler Solar System Celestial mechanics Astrodynamics Astronomy | Destination L1: A Thematic Unit Kepler’s Laws of Planetary Motion TEACHER GUIDE - SCIENCEAdd to Reading ListSource URL: genesismission.jpl.nasa.govDownload Document from Source WebsiteFile Size: 308,06 KBShare Document on Facebook |